Introduce Microsoft Agent 365 safely – observe, govern, and secure AI agents
Copilot agents, custom agents, and automated workflows often spread through Microsoft 365 environments faster than governance structures can be built for them. Microsoft Agent 365 provides the central control layer for making AI agents visible, controlling permissions, and identifying security risks early – as a complement to Entra ID, Purview, Defender, and Security Copilot, not as a replacement for them.
- Make all AI agents centrally visible instead of letting them grow uncontrolled
- Control access and permissions according to the least privilege principle
- Identify risks and unusual agent behavior early
AI agents often appear faster than governance can keep up
Copilot, custom agents, and automated workflows increase productivity – and at the same time raise new questions about visibility, permissions, and control that many companies have not yet answered.
No overview of active agents
Many companies do not know exactly which agents are already being used, tested, or set up independently by individual departments.
Unclear data access
AI agents often work with company data without clear documentation of which content they can actually access.
Shadow AI in departments
Without an approved, governed solution, uncontrolled agent and AI usage often emerges outside the visibility of IT.
Overly broad permissions
Agents sometimes receive more access rights than their actual task requires – without regular review according to the least privilege principle.
The central control layer for AI agents in Microsoft 365
Microsoft describes Agent 365 in terms of three core capabilities that help companies observe, govern, and secure AI agents organization-wide.
Observe
All agents are captured visibly in a central Agent Registry – with an overview of usage, activity, and health for each individual agent.
Govern
Through Agent 365 registration in the Microsoft 365 admin center, in Microsoft Entra, and in Microsoft Purview, the lifecycle of agents can be managed in a targeted way.
Secure
Agent 365 uses the existing security capabilities of Entra ID, Purview, and Defender to secure agents end to end against misuse and misbehavior.
Governance goals that Agent 365 can support
For IT, security, and compliance teams, Agent 365 becomes a building block for not only introducing AI agents, but operating them under lasting control.
Create transparency
An overview of existing and planned AI agents in the Microsoft 365 environment via the central Agent Registry.
Identify risks
Evaluation of access, activities, and potential security risks of individual agents.
Control access
Evaluate and secure agent permissions according to the least privilege principle via Microsoft Entra.
Implement governance
Establish and regularly review policies, responsibilities, and control mechanisms for AI agent scenarios.
Integrate security
Think of Agent 365 together with Microsoft Defender, Entra ID, and Purview instead of operating it in isolation.
Audit and evidence capability
Document agent activities traceably to support audits and internal reviews.
Agent 365 consulting as a structured entry into AI agent governance
Not a rigid fixed-price package, but an individually tailored approach based on the actual maturity of your agent usage. Scope, duration, and required access rights are defined together.
Inventory
Recording existing and planned AI agent scenarios and reconciling them with the Agent Registry.
Risk assessment
Review of permissions, data access, and governance gaps for individual agents.
Governance concept
Development of a practical role, policy, and approval model for agent scenarios.
Technical setup
Support with configuring and integrating Agent 365 into existing Microsoft security processes.
“The consulting focuses on the technical and organizational governance of existing or planned AI agent scenarios with Microsoft Agent 365. Developing your own agents and providing a conclusive legal assessment are not part of this offering.”
Where Agent 365 governance takes effect in practice
Copilot is already in use, but without an agent overview
Microsoft 365 Copilot has been introduced, but there is no central overview of additional agents that departments have activated themselves.
Departments create their own agents
Individual teams set up agents on their own without IT or security systematically finding out about it.
Unclear access rights of existing agents
There is no documentation of which data and systems active agents can actually access.
Preparing for a review or audit
Evidence of which agents are active with which permissions is needed for an internal or external review.
Planned scaling of AI agent scenarios
Before further agents are rolled out company-wide, a solid governance foundation should be in place.
How the collaboration works
Assess
Analysis of the Microsoft 365, Entra ID, and security starting point as well as existing or planned AI agent scenarios.
Identify risks
Review of where unclear permissions, data access, or governance gaps can arise.
Define the target picture
Joint development of a practical concept for secure agent usage, responsibilities, and policies.
Introduce Agent 365
Support with technical setup, configuration, and integration into existing Microsoft security processes.
Optimize
Regular adjustment of monitoring, policies, and processes to new requirements and new agents.
What Agent 365 can do – and what it cannot
Benefits
- Central visibility of AI agents instead of isolated knowledge in individual departments
- Traceable assignment of permissions according to the least privilege principle
- Earlier detection of risky or unusual agent activity
- A more solid basis for audits and internal reviews
- Governance that grows along instead of catching up with AI agent usage afterwards
Limits
Agent 365 does not automate decisions about approvals – people continue to assess and decide. Complete prevention of misbehavior by individual agents cannot be guaranteed.
Agent 365 does not replace an existing security architecture; it requires Entra ID, Purview, and Defender.
Governance only works if roles, policies, and responsibilities are actually lived within the company – no software achieves that on its own.
“Microsoft Agent 365 creates the technical foundation for transparency and control over AI agents. Whether that control works day to day depends on whether roles, policies, and responsibilities are actually defined and followed within the company.”
Agent 365 does not work in isolation, but in combination
Microsoft Entra ID
Enforces risk-based, consistent access control for users and for agents acting on their behalf.
Microsoft Entra ID →Microsoft Purview
Provides insight into data risks through information protection and Data Loss Prevention – crucial for determining which data an agent may access.
Microsoft Purview →Microsoft Defender
Adds continuous threat detection and real-time protection to identify risky agent behavior at runtime.
Microsoft Defender →Microsoft Security Copilot
Comes with its own agents specialized in security tasks. Agent 365 is the organization-wide governance layer for all AI agents – including Security Copilot agents.
Microsoft Security Copilot →Questions about Microsoft Agent 365
Which AI agents are active in our environment?
Many companies do not know exactly which agents are already being used, tested, or set up independently by individual departments. Microsoft Agent 365 creates transparency about existing agents and their activities through the central Agent Registry.
Which data can agents access?
AI agents often work with company data. Microsoft Entra ID and Microsoft Purview make it possible to review and control permissions, data access, and protection policies for agents cleanly.
How do we prevent shadow AI?
A central Agent 365 registration helps make uncontrolled agents visible. Complete prevention of shadow AI cannot be guaranteed, however.
How does Agent 365 differ from Microsoft Security Copilot?
Security Copilot is a product for AI-powered security analysis with its own security-specific agents. Agent 365 is the organization-wide governance layer for all AI agents – including, but not limited to, Security Copilot agents.
Which technical prerequisites does our company need?
According to Microsoft, Agent 365 works most reliably with Microsoft 365 E5 as a foundation; at least one qualifying Agent 365 license is required. We review your company’s specific licensing situation in the initial consultation.
How is Microsoft Agent 365 licensed?
Agent 365 is licensed per user. Specific pricing is not part of this consulting page; we discuss the right licensing approach together with you.
Is Microsoft Agent 365 also worthwhile for smaller companies?
What matters is less the size of the company than the actual number and reach of the AI agents in use. As soon as Copilot or your own agents are used productively, a structural look at governance is worthwhile – regardless of company size.
Does ReByteIT also handle the development of custom agents?
No. The consulting covers assessment, governance design, and the technical rollout of Agent 365 itself – not the development of your own AI agents or agent workflows.
Ready for secure and controlled AI agent scenarios?
In a free initial consultation, we clarify how many AI agents are already active in your environment, where the biggest governance gaps are, and what a sensible entry into Microsoft Agent 365 could look like.
You speak directly with Sebastian Kerssen – working in the Microsoft ecosystem since 2014, as a direct Microsoft partner with no intermediaries.